The phrase "routine is the enemy" is a common expression within the CrossFit community, which promotes the idea that sticking to the same workout routine for too long can lead to a plateau in fitness gains and ultimately hinder progress.
CrossFit methodology emphasizes constantly varied functional movements performed at high intensity, which helps to prevent the body from adapting to a predictable routine. The goal is to challenge the body in new ways, which can lead to greater fitness gains and improved overall health.
However, it's worth noting that while routine can be an obstacle to progress, consistency is also an important aspect of any fitness program. Consistently showing up to workout and practicing good habits can lead to long-term success. The key is to find a balance between consistency and variety in your workouts.
Anything else is sports-specific training and is not a core strength and conditioning program.
"Routine is the enemy." - Coach Greg Glassman